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Prince William

Photo: Kin Cheung / AP

The British heir to the throne, Prince William (41), canceled his participation in a public event at short notice - for "personal reasons," as Kensington Palace said.

Beyond that, no further details were provided about the cancellation.

However, it was emphasized that William's wife Princess Kate was still doing well.

The 42-year-old has been recovering from an abdominal operation for weeks.

King Charles III

had made his cancer diagnosis public at the beginning of February.

William was due to attend a memorial service at Windsor Castle for the late King Constantine of Greece, who was also one of his godparents.

The eldest son of King Charles III.

called the royal Greek family, who were present at the event, and informed them of his cancellation, it said.

Constantine was the last Greek king until a military coup in 1967 and was related to William's grandfather, Prince Philip.

Several senior members of the Royal Family attended the service at St. George's Chapel, which was declared a family event.

These included Charles' wife Queen Camilla and his brother Prince Andrew as well as his ex-wife Sarah "Fergie" Ferguson and their daughters Princess Eugenie and Princess Beatrice.

Apparently Kate doesn't have cancer

Prince William stopped making public appearances after his wife was hospitalized and only resumed them at the beginning of the month.

The 42-year-old was admitted to hospital on January 16th.

The reasons for the abdominal surgery are not known, but according to British media it is not cancer.

Princess Kate will not be attending any appointments until after Easter.

The Princess has not appeared in public since Christmas and is not expected to do so before March 31st.

William currently looks after the couple's three children, George, Charlotte and Louis.

He was present at the British Bafta Film Awards ceremony on February 18th.

After Charles III's cancer.

Popular with the public, William was also expected to take on some of his father's duties - as did Queen Camilla and Princess Anne, Charles' sister.